When you run sudo in Ubuntu, your administrative privileges last for 15 minutes by default so you don't have to type in your password with every command. If that is too long or short for your tastes, you can change it with a simple tweak. »8/29/13 9:00am 8/29/13 9:00am

When you run a command with sudo in Linux, the terminal prompts you to type in your password—and doesn't give you any visual feedback. Here's a quick tweak that'll bring back those familiar asterisks (*) when you type in your password. »8/23/13 6:30am 8/23/13 6:30am

Linux or Mac: The Command-Line Fu web site writes up a quick trick to display stock quotes via the shell prompt—ready to be added to your customized desktop with GeekTool or Conky. »5/05/09 1:15pm 5/05/09 1:15pm